Hannes Siebenhandl pushed to branch wip/fendor/ann-frame at Glasgow Haskell Compiler / GHC

Commits:

• 1df3969f
  by Hannes Siebenhandl at 2025-08-01T16:39:16+00:00

  Apply 1 suggestion(s) to 1 file(s)
  
  Co-authored-by: Rodrigo Mesquita <rodrigo.m.mesquita@gmail.com>

1 changed file:

• rts/PrimOps.cmm

Changes:

     or vector registers. See Note [Frames intercepting frames].

     */

     /*

-    This frame doesn't do anything except pushing 'ann' onto the stack.

-    When decoding the stack, this frame can be used to enhance backtraces

-    with source locations, or other additional data.

+    This frame doesn't do anything when entered. It is only useful when decoding the stack, since this frame serves as an annotation that can be used to enhance backtraces with source locations, or other additional data.

     */

     unwind Sp = W_[Sp + SIZEOF_StgAnnFrame];

     Sp = Sp + SIZEOF_StgAnnFrame;